Motor.



No. 727,124. PATBNTED'MAY5Q1903.

I H. GILLETTE.

MOTOR.

. I APPLICATION FILED JULY 17; 1902.

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MOTOR.

APPLICATION FILED JULY 17, 1902.

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PATENTED MAY 5, 1903.

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H. GILLETTE.

MOTOR.

APPLICATION FILED JULY 17, 1902. H0 IODEL. 3 SHEETS-SHEET 3.

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Patented May 5, 1903.

PATENT OFFICE.

HARLEIGH GILLETTE, OF CHICAGO, ILLINOIS.

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SPECIFICATION forming part of Letters Patent No. 727,124, dated May 5, 1903. Application filed July 17, 1902. Serial No. 115,944. (No inodeld T0 aZZ whom it may concern.-

Be it known that I, HARLEIGH GILLETTE, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois,haveinvented a new and useful Improvement in Motors, of which the following is a specification.

My object is to provide motor mechanism of an improved construction wherein the motive power is generated by a gravity-acting weight which operates intermittingly against a swinging object. Intermediate of its impelling operations the weight is raised by an intermittingly actuated electromagnet, the making and breaking of the electric current through the magnet being efieoted in the fall and rise of the impelling weight.

The motor mechanism is well adapted for producing the continuous oscillation of an object, and I show my invention applied to an advertising-sign or display device in which there is a figure which is kept continuously in motion to attract attention.

Figure 1 is a view in elevation of my improved motor mechanism fastened against the rear face of a supporting-board; Fig. 2, a vertical section on line 2 in Fig. 1; Fig. 3, an enlarged broken section on line 3 in Fig. 1 at the electric-current making and breaking contact; Figs. 4 and 5, sectional diagrammatic views illustrating the operation of the contact mechanism; Fig. 6, a perspective view of a display device to which my invention is applied; Fig. 7, a broken section on line 7in Fig. 8 corresponding with line 7 in-Fig. 1, and Fig. 8 a broken sect-ion on line 8 in Fig. "7.

A is a display-casing having the glass front a and supportingboard A. Fastenedupon the board A in the position shown is a bracket-frame B, presenting a horizontal barb and vertical bar 0. On the upper end of the bar 0 is an overhanging arm 0, supporting f, journaled at opposite sides of the lever in bearing-screws f in the frame. On the lever D is an armature D, having a projecting impact-piece g in position to engage the surface of the pole d. On the under side of the lever in the position shown is a head or weight D having a smooth under surface. At the end of the arm I) is a pair of horizontal bearing ears I), fitted with vertical screws E E. The screws extend in the direction of each other, the screw E presenting a pointed contact end and the screw E a blunt end, as shown.

E is a U-shaped vibratory contact piece or frame having'pointed'bearing ends 72, fitting loosely in the sockets e of the lever. On the contact piece or frame E is a contact-plate E of a thickness somewhat less than the distance between the adjacent ends of the screws E E. I On the frame above the center of the lever is a rigid downward-projecting arm 19 and E is a spring connected at opposite ends, respectively, with the lower end of the arm I) and the contact-plate E at the center thereof. Between its ends the spring passes freely between the bifurcated arms 6. The lower end of. the arm b to which the spring E is connected, the spring E and the contact-piece E are so arranged with relation to each other and to the pivotfof'the lever that when the weighteden'd of the lever is in the lowered position (shown in-Fig. l) the spring snaps the contact-plate against the end of the contact-screw E; but when the lever is raised, withitscontact part 9 against the pole d, the spring snaps thecontact-piece against the end of the stop or bearing-screw E.

1 F is a prop comprising a frame with an upward-projecting arm 71 and a downward-projecting arm 2", .the frame being pivotally mounted between its arms upon a shaft 11 The shaft 1' is supported at one end in the bar or arm bof the frame and at its opposite end ina bracket b extending from the barb over an'ddown the outer side of the prop, as shown ,most plainly in Fig. 2. .On th'eqloar b of the frame B'is a downward-projecting plate I), presenting at its lower end a V- shaped bearing-socket b 7 1 G is a display-figure-supporting strip or plate forming, in efiect, a rock-shaft having the integral upper projecting portion or arm G. On the shaft or support G is an upwardprojecting plate 76, having a V-shaped socket 7t" at its upper end to fit the V-shaped bearing-socket b the parts forming, in effect, a knife-blade bearing on which the shaft G may rock. Fastened to the supporting-board A, above the frame B, is a bar H, having a series of attaching-holes Z.

H is a weak spring of fine coiled wire fas tened at its upper end in one of the holesZ and fastened at its lower end in an opening k in the upper end of the arm G of the rockshaft G. The rock-shaft is thus suspended at that end from the spring H which holds the bearings 7t b in engagement. The shaft or support G passes through an opening A in a board A. On the shaft or support G is a laterally-projecting lip G having a threaded opening through it for a screw G forming an adjustable stop extending upward parallel .with the arm G and pointed at its upper end.

to the arm 't" of the prop F and fastened at its opposite end to the free end of the arm G. I is a cord or the like fastened at its ends atm m to the board A, passing over shoulders m, thence through diagonal openings m in the board to the opening A in which opening it is connected with the upper edge portion of the rock-shaft or support G, as shown at m in Fig. 2. Thus the rock-shaft G is supported by the spring H at one end, as described, and supported toward its opposite end pivotally by the cord 1. The shaft or support G may carry in the space between the board A and glass (1 a body or object K, which may be a fantastic figure, such as that shown in Fig. 6, or any other object, body, or the like forming the attractive feature of a display device or anything else desired.

The body K may consist of a picture painted upon cardboard or the like and cut out around its outline, the cardboard being fastened at intervals along its edges by means of spacers K to a cardboard or other bracingstrip K to limit or prevent warping, as shown in Fig. 2. The braced display picture or body is secured upon the end of the support G' to extend, as shown, freely between the board A and glass front a.

L is a battery of any desired construction placed in any convenient position in the frame A or otherwise. One battery-wire L extends directly to the electromagnet, and the other battery-wire L extends to a binding-post L on the frame B. The parts of the device are so insulated from each other that the current from the binding-post L must pass through the screw L arm 12 spring E, contact-piece E and spring E to pass to a wire L which extends to the magnet. The wires are connected with the condensing-coil 00 for the usual purpose.

Itwill be understood that when the contactplate E is out of engagement with the end of the contact-screw E the current is broken, while when the contact-plate E engages the end of the contact-screw E the current from the battery passes through the magnet and excites the latter.

The operation is as follows: A preliminary impulse may be given to the shaft G to rock it on the pivot-bearings at 7;, b and m Starting from the position shown in Fig 1, the weight D of the lever D rests upon the upper end of the screw G and while resting in that position tends to bear down upon the screw and swing the shaft G on its said pivot. The mowement of the lever while descending at its weighted end is from the position shown in Fig. 5, wherein contact is broken, to the position shown in Fig. 4, in which contact is made. It will be noticed that the spring E when the parts are in the position shown in Fig. 5, extends at an angle fromthe contactplate E which moves the contact-piece E on its pivot at 6 against the end of the screw E. Upward movement of that end of the lever B swings the pivots above the line of pull of the spring, whereby the pull is then upon the under side of the contact-piece, and the plate E is snapped to the contactscrew E, as shown in Fig. 4. Therefore in the downward movement of the weighted exciting or energizing the same, whereby it attracts the armature D and raises it, with the lever, until the part G strikes the pole d. The instant that the part 9 reaches or nearly reaches the pole d the bearing-sockets c, with the bearing-points 71 of the contact-piece, cross the line of pull of the spring E", whereby the said pull. is at an angle from the upper side of the contact-piece, and the same is raised on its pivots and snapped to the end of the stop or hearing screw E, as shown in Fig. 5. This breaks the current and instantly deenergizes the magnet to a degree which leaves the weighted lever free to drop again. It is necessary that the lever shall be held after the magnetic attraction has ceased until the shaft rocks to the limit of its movement in the direction toward the weighted lever. This supporting of the lever is effected by the swinging prop F. The arm G is upon the rock-shaft, as before stated, and the position of the end of said arm, to which the spring F is attached, is such with reference to the end of the prop-arm 2", to which the other end of the spring is attached, and the fulcrum at f that the arm i of the prop is swung in the direction under the adjacent end of the lever D when the free end of the arm G rises above a certain plane in its path, and the prop-arm t' is moved away from the end of the lever D when the end of the arm G moves downward below said plane. The parts are so adjusted with relation to each other that when the armature is attracted by the magnet and the revues lever is raised the shaft Gunder the impulse given to it by the previous drop of the weight is swung on its pivot to raise the arm G Thus as soon as the armature approaches the nearest position to the magnet and just as the contact at E is broken,as before described, the arm 2' of the prop F is moved under the end of the lever, so that when the magnet is deenergized the lever rests at its free end upon the prop. In the return movement of the rock-shaft the screw or shoulder G is raised until it strikes against the under side of the weight D the impulse being sufficient to raise the weighted lever to a very slight extent on its fulcrum. In the rise of the screw G3 there is a corresponding descent of the arm G", and as it reaches its lowest limit the pull of the spring F upon the prop is in the direction of moving the arm i of the prop away from the end of the lever. This pull is present when the impact of the screw Gr against the weight lifts the lever from the prop, and the latter being thus released is swung away from the end of the lever, permitting the latter to bear down upon the screw G and rock the shaft. Then once started, the rocking of the shaft and parts carried thereby is kept up by the impulses given thereto, as described, by the weighted lever when released by the magnet and the prop.

The end of the armature l) is never in physical contact with the pole-block (Z and as a consequence there is no friction to retard the movement of the Weighted end of the lever. The pole-block d presents a flat surface to the end of the armature, which permits the magnet to present a maximum pulling force against the armature throughout its movement under the force of the magnet. This construction is desirable because in practice it prevents all danger of the armatures sticking or freezing to the poles. I prefer to provide the magnet with cores which do not become completely demagnetized, but which are only capable of attracting and sustaining the armature when the magnets are energized by the electric current. By thus providing cores which are not completely demagnetized the action thereof when the magnet is energized is quickened in a manner to greatly limit the amount of current necessary for the operation of the device. As before stated, the magnets are supported from the overhanging arm c of the frame, and they tend to hang in the vertical plane. The screw d presses against the pole-block d to hold it in proper position with reference to the end of the armature I). The adjustment of the pole-block may be varied to a slight extent, all that is necessary, by turning the screw 19 in the post (Z In Fig. 1 I have shown a spring M, secured at its upper end to the under side of the lever D and fastened atits lower end to a cord M, which is wound upon a pin or screw M The screw or pin M passes through a post M on the board A, and on the pin or screw is a thumb-wheel M The spring M snpplem cuts the power of the weight D in drawing the lever D down when the magnets are denergized to exert the impelling force against the pin or screw G The spring M may aid the action of the weight or operate in place of the weight; but the spring and weight may be regarded as the mechanical equivalents of each other. The spring may be tensioned by turning the pin or screw M to wind up or pay out the cord M. The normal angle of the shaft or vibrating body G, beyond which it swings at opposite sides, may be changed by changing the position of the spring H at the holes l.

The cord I forms a convenient means for raising and lowering the shaft or support G to cause the figure or body K to extend par allel with the board A and glass at. The frame of the figure or body will sometimes Warp to a degree which requires its readjustment, and this may be quickly performed by raising or lowering the adj usting-cord I on the fastenings m.

I have shown and described myimprove ments in their preferred form, especially as applied to actuate a body supported to vibrate in, more especially a display device.

Details would be changed to adapt the mechanism for operating in other classes of devices, and I wish it to be understood that the construction shown may be variously modified without departing from the spirit of my invention as defined by the claims.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination with a body supported to vibrate, of gravity impelling mechanism therefor comprisinga pivotal weighted swinging lever, an armature upon said lever, an electromagnet, a movable circuit making and breaking contact actuated by fall of the lever to close the circuit and by rise of the lever to break the circuit, and a prop for the lever displaced by movementof said body, substantially as described.

2. The combination with a body supported to vibrate, of gravity impelling mechanism, supported'to actuate said body comprising a pivotal horizontallydisposed and verticallyswinging weighted lever, a lever-raising armature upon said lever, an electromagnet, and means for making and breaking the electric current through the magnet, comprising a pivotal contact-piece actuated by movement of the said lever.

3. The combination with a body supported to vibrate, of a gravity impelling-motor, supported to actuate said body, comprising gravity impelling lever mechanism, a comparatively weak permanent magnet,a lever-raising armature of too great resistanceto be attracted by the permanent magnet alone, an electromagnet-winding for the permanent magnet,

and a circuit making and breaking contact actuated by the movement of the lever to reinforce the magnet intermittingly to attract the armature, substantially as and for the purpose set forth.

4:. The combination with a body supported to vibrate, of a gravity impelling-motor supported to actuate said body comprising a pivotal vertically-swinging gravity impelling-lever, a lever-raising armature on thelever, an electromagnet having a projecting core extending beyond the path of the end of the armature, and means for making and breaking the electric current through the magnet, comprising a pivotal contact-piece actuated by movement of the said lever, substantially as described.

5. The combination with-a body supported to vibrate, of agravityimpelling-motor, supported to actuate said body comprising a pivotal gravity impelling-lever, a lever-raising armature upon said lever, an electromagnet, and means for making and breaking the electric current through the magnet comprising a relatively stationary contact and a vibratory spring-operated contact-piece actuated to snap to and from the said stationary contact by change of angle of the said lever.

6. The combination with a body supported to vibrate, of a gravity impelling-motor, supported to actuate said body comprising a pivotal gravity impelling-lever, a lever-raising armature, an electromagnet, and means for making and breaking the electric current through the magnet comprising a stop, and a stationary electric contact-point close to said stop, a vibratory contact-piece provided with sharpened bearing ends resting end to end against said lever, and extending between said contact-point and stop, and a spring connected with said contact-piece and with a stationary support and operating to snap the contact-piece alternately to the contact-point and stop under changes in angle between the contact-piece and said impelling-lever.

7. The combination with a body supported to vibrate, of a gravity impelling-motor supported to actuate said body comprising a pivotal gravity impelling-lever, a lever-raising armature, an electromagnet, and means for making and breaking the electric current through the magnet comprisinga stop, a stationary electric contact-point close to said stop, a vibratory contact-piece provided with sharpened bearing ends resting end to end against said lever, and extending between said contact-point and stop, and a spring connected with said contact-piece and with a stationary support and operating to snap the contact-piece alternately to the contact-point and stop under changes in angle between the contact-piece and said impelling-lever, and a prop for the impelling-lever movable into and out of lever-engaging position by movement of the said vibrating body.

8. The combination with a body supported to vibrate, of a gravity impelling-motor supported to actuate said body, comprising a pivotal swinging gravity impelling-lever, a lever-raising armature upon the lever, an elec tromagnet, a movable circuit making and breaking contact actuated by fall of said lever to close the circuit through said magnet and by rise of the lever to break the circuit, and a vibratory prop connected with said vibratory body and movable into and out of lever-engaging position by the change of angle of said body in its movement. a

9. The combination with abody supported to vibrate, of agravity impelling-motorthereforsupported to actuate said body com prising a pivotal, vertically-swinging gravity impelling-lever, a lever-raising armature, an electromagnet, and means for making and breaking the electric current through the magnet, and a supporting-spring for the said body at one end.

- 10. The combination with a body supported to vibrate, of agravity impelling-motor therefor, supported to actuate said body comprising a pivotal, vertically-swinging gravityimpelling-lever, a lever-raising armature, an electromagnet and means for making and breaking the electric current throughthe magnet, a supporting-spring for the said body at one end, and means for changing the angular adjustment of said spring.

11. In a display device, the combination with a display-figure-supporting rock-shaft, of pivot-bearings for said shaft, a shoulder upon said shaft, and impelling mechanism for said shaft comprising a pivotal verticallyswinging lever in the path of said shoulder, a lever-raising armature, an electromagnet, means for making and breaking the electric current through the magnet actuated by the movement of said lever, and a prop for the lever movable into and out of lever-engaging position by the movement of said rock-shaft.

12. In a display device, the combination with a display-figure-supporting rock-shaft, of pivot-bearings for said shaft at the upper side thereof, a shoulder upon said shaft, and impelling mechanism for said shaft comprising a pivotal vertically-swinging lever in the path of said shoulder, a lever-raising armature, an electromagnet, means for making and breaking the electric current through the magnet actuated by the movement of said 1ever, and a prop for the lever movable into and p out of lever-engaging position by the movement of said rock-shaft.

HARLEIGH GILLETTE.

1n presence of- ALBERT D. BAOOI, M. S. MACKENZIE. 

